TY - GEN
T1 - Matrix Coupled All-in-One Magnetics for PWM Power Conversion
AU - Wang, Ping
AU - Zhou, Daniel
AU - Yang, Vincent
AU - Chen, Minjie
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - This paper investigates the matrix coupled "all-in-one"magnetic structure that combines both series coupling and parallel coupling for pulse-width-modulated (PWM) power conversion. A systematic analysis of the current ripple reduction mechanism is performed. The transient performance of the matrix coupled inductor is demystified, providing guidance on the analysis of converter dynamics and large- or small-signal modeling. To quantify the benefits of matrix coupling, a figure of merit is defined by comparing the current ripple of a matrix coupled inductor to that of a discrete inductor given the same transient speed. The comparison results indicate that a higher number of phases and a stronger matrix coupling coefficient amplify the benefits of matrix coupling. A 1 V-to-5 V input, 1 V-to-5 V output, four-phase matrix coupled synchronous SEPIC converter with planar PCB integrated magnetics was built and tested. The experimental results validate the matrix coupling concept and the theoretical analysis, opening the possibility towards wide adoption of "All-in-One-Magnetics"in PWM topologies.
AB - This paper investigates the matrix coupled "all-in-one"magnetic structure that combines both series coupling and parallel coupling for pulse-width-modulated (PWM) power conversion. A systematic analysis of the current ripple reduction mechanism is performed. The transient performance of the matrix coupled inductor is demystified, providing guidance on the analysis of converter dynamics and large- or small-signal modeling. To quantify the benefits of matrix coupling, a figure of merit is defined by comparing the current ripple of a matrix coupled inductor to that of a discrete inductor given the same transient speed. The comparison results indicate that a higher number of phases and a stronger matrix coupling coefficient amplify the benefits of matrix coupling. A 1 V-to-5 V input, 1 V-to-5 V output, four-phase matrix coupled synchronous SEPIC converter with planar PCB integrated magnetics was built and tested. The experimental results validate the matrix coupling concept and the theoretical analysis, opening the possibility towards wide adoption of "All-in-One-Magnetics"in PWM topologies.
KW - Coupled inductor
KW - Current ripple reduction
KW - Inductance dual model
KW - Integrated magnetics
KW - Multiphase interleaving
KW - Transfer function
UR - http://www.scopus.com/inward/record.url?scp=85124218122&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85124218122&partnerID=8YFLogxK
U2 - 10.1109/COMPEL52922.2021.9645954
DO - 10.1109/COMPEL52922.2021.9645954
M3 - Conference contribution
AN - SCOPUS:85124218122
T3 - 2021 IEEE 22nd Workshop on Control and Modelling of Power Electronics, COMPEL 2021
BT - 2021 IEEE 22nd Workshop on Control and Modelling of Power Electronics, COMPEL 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd IEEE Workshop on Control and Modelling of Power Electronics, COMPEL 2021
Y2 - 2 November 2021 through 5 November 2021
ER -